Combined type-writing and adding machine.



L. G. JULIHN.

COMBINED TYPE WRITING AND ADDING MACHlNE.

APPLICATION FILED JUNE 4,1906.

1,275,937. Patented Aug. 13,1918.-

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APPLICATION HLED JUNE ..1906. 1375,9379 Patented Aug. 13, 1918.

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APPLICATION FILED JUNE 4. I906.

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APPLICATION FILED JUNE 4. 1906.

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COMBINED TYPE WRITING AND ADDING MACHINE.

APPLICATION FILED JUNE 4. 1906.

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COMBINED TYPE WRITING AND ADDING MACHINE.

APPLICATION FILED JUNE 4. I906.

Patented Aug. 13, 1918.

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APPLICATION FILED JUNE 4,1906. 1,275,937.

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COMBINED TYPE WRITING AND ADDING MACHINE.

APPLICATION FILED JUNE 4, 1906.

Patented Aug. 13, 1918.

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' 14 a wvawtoz wi tmeooeo ltfozuea UNITED STATES PATENT OFFICE.

LOUIS G. JULIHN, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TOELLIO'YI FISI-IER COMPANY, OF NEW YORK, N. Y., A CORPORATION OFDELAWARE.

COMBINED TYPE-WRITING AND ADDING MACHINE.

To all whom 2'25 may concern:

Be it known that I, LoUIs G. JULIHN, a citizen of the United States,residing at "Washington, in the District of Columbia, have invented anew and useful Combined Type-Writing and Adding Machine, of which thefollowing is a specification.

My present invention relates to calculating machines, but moreparticularly to a combined typewriting and adding machine, in which thetotal of the numbers recorded by the typewriting mechanism ismechanically computed and registered. To this type of machines, asordinarily constructed, two primary objections are urged. First, it isimpossible to detect the commission of an error due, for instance, tothe striking of the wrong key, because the only amount registered andexhibited before the operator is the total of the numbers printed, andas the correct total is unknown, an inspection of the erroneous totalfails to reveal the error. Second, if an error has been made, it isimpossible to correct it because the erroneous item or number will havebeen set up on the register and cannot be eliminated.

The primary objects of my invention, therefore, are first, to providemechanism for registering the individual items or numbers, as well asthe total of the numbers previously printed, so that the individualnumber will be exhibited to the operator as it is written, in order tofacilitate the detection of error, and second, to provide for thecorrection of error by equipping the machine with an item or numberregister upon which each individual number is set up by the keys andfrom which the number, if correct, will be automatically transferred tothe total register, or from which the number, if incorrect, may beeliminated by the manipulation of an error key without affecting thetotal register.

Subordinate to these primary objects are many others which will morefully appear hereinafter.

In the accompanying drawings- Figure 1 is a sectional elevation of mycombined typewriting and calculating machine, portions of the typewriterstructure being broken away.

Fig. 2 is a plan view of the same on a somewhat smaller scale.

Fig. 3 is a sectional elevation of the computing device proper and aportion of the Specification of Letters Patent.

Application filed June 4, 1906.

Patented Aug. 13, 1918.

Serial No. 320,153.

typewriter carriage and master actuator, the various parts being in thepositions they normally assume preparatory to the writing of a number.

Fig. 4: is a similar view, showing the positions assumed by the partsafter a number has been set up on the item register and said registermoved back into position to operate the total register.

Fig. 5 is a similar view, showing the parts in the positions they assumeduring the transfer of a number or item from the item register to thetotal register and just as one of the transfer selectors of the totalregister is swung back.

Fig. 6 is a similar view, showing the parts in the positions they assumejust as the transfer of the number from the item register to the totalregister is completed.

Fig. 7 is another view of the same character, showing the parts in thepositions they assume during the movement of the item register from thetotal register to the actuator, the resetting yoke of the item registerhaving returned to normal position, and v the combined transfer-lock anddogshifter being shown operated to unlock the transfer mechanism and torotate the transfer dogs to their operative positions.

Fig. 8 is another view of this character after the item register hascompleted its forward movement and after the transfer mechanism hasoperated.

Fig. 9 is a similar view showing the transfer mechanism just as it hasbeen reset by the retraction of the carriage after the transfer of anumber from the item register to the total register.

Fig. 10 is a similar view, showing the transfer mechanism in the act ofbeing reset by the initial upward movement of the resetting leverpreparatory to the resetting of the total register.

Fig. 11 is a sectional elevation of the total register, showing theparts in the positions assumed when the digit carriers have been reset.v

Fig. 11 is a detail perspective view of the latch lever which holds thetwo registers in cooperative relation during the transfer of a numberfrom one to the other.

Fig. 12 is a sectional elevation of the total register, showing thetransfer mecha nism in the act of being reset by the retraction of theresetting lever.

Fig. 12 is a detail view of one of the item wheels.

Fig. 13 is a side elevation of the front portion of the computing deviceand a portion of the actuator and the typewriter carriage, the itemregister being in position to receive a number.

Fig. 13 is a detail view of the overthrow yoke of the item register.

Fig. .14 is a view similar to Fig. 13, but showing the item registermoved back to the totalregister and the motor lock operated to releasethe motor.

Fig. 15 is a diagrammatic detail elevation, showing the arrangement ofcams on the carriage.

Figs. 15*, 15 and 15 are diagrammatic detail views illustrating theoperation of the cams for causing either the forward or backwardmovement of the typewriter carriage subsequent to the printing of a numher, to move the item register back to the total register preparatory tothe transfer of the number to the total register.

Fig. 16 is a detail view, showing a modisea construction including aseries of cams for shifting the item totalizer during various periods ofthe retractile movement of the typewriter carriage.

Fig. 17 is a front elevation of the computing device including the twototalizers with the front portion or hood of the casing in section.

Fig. 18 is a transverse vertical section through the total register onthe line 18 18 of Fig. 13.

Fig. 19 is a sectional view on the line 19 19 of Fig. 3.

Fig. 20 is a similar view on the line 20 -20 of Fig. 3.

Fig. 21 is a detail perspective view of the transfer lock.

Fig. 22 is a front elevation of the computing device with the itemregister in sec tion.

Fig. 23 is a detail view of the item carrier and some of the associatedparts, and

Fig. 24: is a detail view of the resetting yoke and error key of theitem register.

Fig. 25 is a detail perspective view of a portion of the computingdevice, showing the manner in which an item and the previously computedtotal are exhibited.

I Fig. 26 is a detail view, showing the relation of the rack bar 135 andthe cams or actuators 136;

General organization of the machine.

In the illustrated embodiment of the inveiition', the generalorganization of the machine includes a typewriter of the fiat platentype, anld known to commerce as the Elliott-Fisher billing machine. Onthe frame of this typewriter is supported a computing devicewhiclr isadjustable trans versely to dispose it in position for use withreference to a column located at any desired point on the work sheetupon which the numbers tobe included in the computation are recorded bythe typewriter in the usual manner.

The computing device includes two registers, one for the total and theother for the individual items or numbers. The total register includes aseries of digit carriers or number wheels occupying differentdenominational positions, corresponding to the denominational orders ofthe column, and transfer or carrying mechanism including transfer leversand transfer selectors, whereby the value accumulated upon anydenominational member will be transferred to the member of next higherorder when the limit of value of the member first named is reached. Theitem register includes a series of digit carriers or item wheelscorresponding in number and denominational position to the digitcarriers of the total register, but having no transfer or carryingmechanism. The item register is mounted on a movable item carrier and isnormally located in an advanced position and out of cooperative relationwith the total register.

On the, carriage of the typewriter is mounted a master wheelintermittently rotatable in one direction only by any numeral key of thetypewriter, through the medium of operating connections, whereby the eX-tent of rotary movement of the, master wheel will correspond to thevalue of the particular numeral key depressed. As the typewritercarriage moves laterally to space the digits printed in a line, themaster wheel is shifted laterally to engage the successive wheels of theitem register. Therefore, the depression of a key to cause the printingof v a digit in a given denominational position, will cause the itemwheel of corresponding denominational position to be rotated a number ofincrements corresponding to the value of the digit printed. Thus, as anumber is printed on the work sheet, such number will be set up on theitem register and exhibited to the operator. If the number exhibited iserroneous, the open ator manipulates an error key, which restores theitem wheels to zero. The operator then erases the number erroneouslyprinted and prints the correct number, which will be displayed asbefore, upon the item register. Having assured himself of thecorrectness of the number by an inspection of the item register, theoperator will either retract the carriage to begin the writing of a newnumber, or will advance the carriage beyond the column for the pur poseof printing other matter. In either event, the movement of thecarriage,whether it be forward or backward, will automatically shift the itemregisterback to'thetota-l

